Also available is the Esme Dual-Fold Nylon Sleeve for 13" / 15" Macbook Air or Pro (pictured) for $4 with free shipping. That's also tied with last week's mention as the lowest total price we could find for any such nylon sleeve by $2. It features a smaller front pocket for a tablet or other accessories.
Netdirectsales via eBay offers the Targus Laptop Cooling Chill Hub, model no. AWE12US, for $14.99 with free shipping. That's $2 under our September mention and the lowest total price we could find by $2. It features an integrated 4-port USB hub and two fans.
Newegg via eBay offers the Leap Motion Controller for Windows and Mac, model no. LM-010, for $79.99 with free shipping. (Best Buy via eBay has it for the same price.) That's tied with our mention from last month, but Newegg bundled it with the Leap Motion GameWAVE app then. It's currently the lowest total price we could find by $9. The Leap Motion Controller uses the space between you and your computer to track the movement of your hands at a rate of 200 frames per second. It purports to follow all 10 fingers up to 1/100th of a millimeter, making it significantly more sensitive than existing motion-control technology.